Last updated: June 2, 2025
In Antsohihy, Madagascar, being aware of the UV Index is crucial for protecting your skin from the sun's harmful rays. Understanding UV levels is essential not just for preventing painful sunburns, but also for safeguarding long-term skin health. With an Aw climate characterized by warm temperatures and high sunlight exposure, the UV Index can soar, peaking at 9 around noon. This means that during the midday hours, residents and visitors alike should take extra precautions to avoid skin damage. Stay informed, stay protected, and enjoy the sun safely!
As the day unfolds, the UV Index experiences a notable rise, peaking at 9 during the noon hour. Starting from a gentle 1 at 7:00 AM, it escalates steadily, reaching 7 by 10:00 AM and 8 by 11:00 AM. The intensity continues to surge, hitting its zenith of 9 at 12:00 PM, before gradually tapering off in the afternoon. By 3:00 PM, it dips to 3, and as the sun begins to set, the index drops to a low 0 by 7:00 PM, signifying a swift decline in UV radiation. This pattern underscores the importance of sun safety during the peak hours of 10:00 AM to 2:00 PM, when UV exposure is at its highest. Stay protected and enjoy the sun wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits considerable variation throughout the year, with extreme levels persisting from January to April and again in August, November, and December. The highest UV Index values of 16 occur in the first three months, indicating an urgent need for protection against sun exposure, with a very short burn time of just 10 minutes. From May to July, while the UV Index remains high (ranging from 9 to 10), there is a slight increase in burn time to 15 minutes. As summer transitions to fall, September and October see UV levels dropping, but they still warrant caution due to an extreme rating and a 10-minute burn time. Given these findings, visitors and residents are strongly advised to take appropriate sun protection measures, particularly during the high-risk months from January through April, and again in August and November. This includes wearing sunscreen, hats, and protective clothing, especially during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Toamasina UVI | 16 | 16 | 15 | 12 | 9 | 7 | 8 | 10 | 12 | 12 | 13 | 15 |
| Fianarantsoa UVI | 17 | 17 | 15 | 12 | 9 | 7 | 8 | 10 | 12 | 13 | 14 | 16 |
| Mahajanga UVI | 16 | 16 | 15 | 13 | 10 | 8 | 9 | 11 | 12 | 12 | 13 | 15 |
| Antsohihy | 16 | 16 | 16 | 13 | 10 | 9 | 9 | 11 | 13 | 12 | 14 | 15 |
| Antananarivo UVI | 17 | 17 | 15 | 12 | 10 | 8 | 9 | 11 | 13 | 13 | 14 | 16 |
| Antsirabe UVI | 17 | 17 | 16 | 13 | 10 | 8 | 9 | 11 | 13 | 13 | 14 | 16 |